-EDIT- Once the machine was restarted everything worked... somehow... -EDIT- Hi All, I have a multi-server installation: 2 Web Servers (Apache2) - 1 of them is acting as the ISPConfig master server 1 DNS 1 DB 1 Mail All running Ubuntu 14.04LTS with all the latest updates and ISPConfig 3.1.11. I have successfully installed 2 additional PHP versions (I only need 5.6 and 7.0) on both Master and Slave Web server. I then created the entries in System > Additional PHP Version. 2 for the master instance, and 2 for the slave instance. The additional PHP versions are visible when editing a website properties. On the Master server, everything is working fine. On the Slave server, regardless of which version is selected, the default version (5.5) is actually used. Additional information: - All websites are setup to work with PHP_FPM - On Demand. - I have crawled the logs for leads/clues... but have found nothing - On slave, I can see php5-fpm, php5.6-fpm and php7.0-fpm with (output of "ps aux |grep php") but only php5-fpm spawns processes. - The websites on the slave webserver are functional (well phpinfo() is). - On both boxes I have installed the additional PHP versions via the ppandrej/php repository (I have another standalone UBUNTU 14.04 box that works fine with multiple PHP versions from that repo). Can anyone offer a suggestion of where to look for clues? Regards, George